<template>
  <view>
    <view class="search-box">
      <MySearch @click="gotoSearch"></MySearch>
    </view>
    <!-- 轮播图区域 -->
    <swiper
      :indicator-dots="true"
      :autoplay="true"
      :interval="3000"
      :duration="1000"
      :circular="true"
    >
      <!-- 循环渲染轮播图的 item 项 -->
      <swiper-item v-for="(item, i) in swiperList" :key="i">
        <navigator
          class="swiper-item"
          :url="'/subpkg/goods_detail/index?goods_id=' + item.goods_id"
        >
          <!-- 动态绑定图片的 src 属性 -->
          <image :src="item.image_src"></image>
        </navigator>
      </swiper-item>
    </swiper>
    <!-- 分类导航区 -->
    <view class="nav-list">
      <view
        class="nav-item"
        v-for="(item, i) in navList"
        :key="i"
        @click="handlerNav(item)"
      >
        <image :src="item.image_src" class="nav-img"></image>
      </view>
    </view>
    <!-- 楼层区域 -->
    <view class="floor-list">
      <!-- 楼层 item 项 -->
      <view class="floor-item" v-for="(item, i) in floorData" :key="i">
        <!-- 楼层标题 -->
        <image :src="item.floor_title.image_src" class="floor-title"></image>
        <!-- 楼层图片区域 -->
        <view class="floor-img-box">
          <!-- 左侧大图片的盒子 -->
          <navigator class="left-img-box" :url="item.product_list[0].url">
            <image
              :src="item.product_list[0].image_src"
              :style="{ width: item.product_list[0].image_width + 'rpx' }"
              mode="widthFix"
            ></image>
          </navigator>
          <!-- 右侧 4 个小图片的盒子 -->
          <view class="right-img-box">
            <navigator
              class="right-img-item"
              v-for="(item2, i2) in item.product_list"
              :key="i2"
              v-if="i2 !== 0"
              :url="item2.url"
            >
              <image
                :src="item2.image_src"
                mode="widthFix"
                :style="{ width: item2.image_width + 'rpx' }"
              ></image>
            </navigator>
          </view>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
import tabbar from '../../mixins/tabber'
// 按需导入 mapState 这个辅助函数
import { mapState } from 'vuex'
export default {
  mixins:[tabbar],
  data() {
    return {
      // 轮播图数据
      swiperList: [],
      // 导航区
      navList: [],
      // 楼层区
      floorData: [],
    };
  },
  onLoad() {
    this.getSwiperList();
    this.getNavList();
    this.getFloorData();
  },
  methods: {
    async getSwiperList() {
      let res = await uni.$http.get("/api/public/v1/home/swiperdata");
      if (res.statusCode !== 200) {
        return uni.$showMsg;
      } else {
        this.swiperList = res.data.message;
        uni.$showMsg("欢迎！");
      }
    },
    async getNavList() {
      let res = await uni.$http.get("/api/public/v1/home/catitems");
      if (res.statusCode !== 200) {
        return uni.$showMsg;
      } else {
        this.navList = res.data.message;
      }
    },
    handlerNav(item) {
      if (item.name === "分类") {
        uni.switchTab({
          url: "/pages/cate/index",
        });
      }
    },
    async getFloorData() {
      let res = await uni.$http.get("/api/public/v1/home/floordata");
      console.log(res);
      if (res.statusCode !== 200) {
        return uni.$showMsg;
      } else {
        // 通过双层for循环处理
        res.data.message.forEach((floor) => {
          floor.product_list.forEach((floorUrl) => {
            // 添加自定义的url属性
            floorUrl.url =
              "/subpkg/goods_list/index?" +
              floorUrl.navigator_url.split("?")[1];
          });
        });
        this.floorData = res.data.message;
      }
    },
    // 跳转到分包中的搜索页面
    gotoSearch() {
      uni.navigateTo({
        url: "/subpkg/search/index",
      });
    },
  },
};
</script>

<style>
swiper {
  height: 330rpx;
}
.swiper-item,
image {
  width: 100%;
  height: 100%;
}
.nav-list {
  display: flex;
  justify-content: space-around;
  margin: 15px 0;
}
.nav-img {
  width: 128rpx;
  height: 140rpx;
}
.floor-title {
  height: 60rpx;
  width: 100%;
  display: flex;
}
.right-img-box {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}
.floor-img-box {
  display: flex;
  padding-left: 10rpx;
}
.search-box {
  position: sticky;
  top: 0;
  z-index: 999;
}
</style>